<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>购物车</title>
	<%-- 静态包含 base标签、css样式、jQuery文件 --%>
	<%@ include file="/pages/common/head.jsp"%>
<link type="text/css" rel="stylesheet" href="static/css/style.css" >
	<script type="text/javascript">
		$(function (){
			//给删除的a标签绑定单击事件，用于删除的确认提示操作
			$("a.delete").click(function (){
				//coconfirm是确认提示框，蚕食是他的提示内容
				//返回true表示点击了确定，否则点击了取消
				return 	confirm("你确定要删除吗？");
			})
			//给清空购物车绑定单击事件
			$("a.clear").click(function () {
				return confirm("你确定要清空购物车么？")
			})
			//给输入框绑定失去焦点事件
			$(".updateCount").change(function () {
				var id =$(this).attr("bookId");
				var count = this.value;
				if(confirm("你确定要修改该商品的数量吗？")){
					//发起请求给服务器保存
					location.href="http://localhost:8080/login_war_exploded/cartServlet?action=updateCount&count="+count+"&id="+id;
				}else{
					//defaultValue属性是表单项Dom对象的属性 它表示默认的value属性值
					this.value = this.defaultValue;
				}

			})
		})
	</script>
</head>
<body>
	
	<div id="header">
			<img class="logo_img" alt="" src="../../static/img/logo.gif" >
			<span class="wel_word">购物车</span>
		<%@include file="/pages/common/manager_menu.jsp"%>
	</div>

	
	<div id="main">
	
		<table>
			<tr>
				<td>商品名称</td>
				<td>数量</td>
				<td>单价</td>
				<td>金额</td>
				<td>操作</td>
			</tr>
			<%--如果购物车非空才输出页面的内容--%>
			<c:if test="${not empty sessionScope.cart.items}">
				<c:forEach items="${sessionScope.cart.items}" var="entry">
					<tr>
						<td>${entry.value.name}</td>
						<td>
							<input class="updateCount" style="width: 30px" type="text" value="${entry.value.count}" bookId="${entry.value.id}"></input>
						</td>
						<td>${entry.value.price}</td>
						<td>${entry.value.totalPrice}</td>
						<td><a href="cartServlet?action=deleteItem&id=${entry.value.id}" class="delete">删除</a></td>
					</tr>
				</c:forEach>
			</c:if>

		</table>
		<%--如果购物车空才输出页面的内容--%>
		<c:if test="${ empty sessionScope.cart.items}">
			<h2 style="text-align: center">当前购物车为空哦</h2>
		</c:if>
		<%--如果购物车非空才输出页面的内容--%>
		<c:if test="${not empty sessionScope.cart.items}">

			<div class="cart_info">
				<span class="cart_span">购物车中共有<span class="b_count">${sessionScope.cart.totalCount}</span>件商品</span>
				<span class="cart_span">总金额<span class="b_price">${sessionScope.cart.totalPrice}</span>元</span>
				<span class="cart_span"><a href="cartServlet?action=clear" class="clear">清空购物车</a></span>
				<span class="cart_span"><a href="orderServlet?action=createOrder">去结账</a></span>
			</div>
		</c:if>
	</div>
	
	<div id="bottom">
		<span>
			小谢书城.Copyright &copy;2022
		</span>
	</div>
</body>
</html>